The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

Researchers have uncovered evidence that Uranus and Neptune could be far rockier on the inside than anyone expected.

Although they are technically gas giants, Uranus and Neptune are referred to as "ice giants" due to their composition.

New models suggest Uranus and Neptune may hold far more rock than expected, raising questions about how these distant planets formed.

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

Uranus and Neptune may not be the icy worlds we’ve long imagined. A new Swiss-led study uses innovative hybrid modeling to ...

Fresh simulations show there is a chance Uranus and Neptune might actually be rock-rich worlds wrapped in thinner icy layers.

WASHINGTON (Reuters) - Frigid and far-flung Neptune, our solar system's outermost planet, is adding to its reputation as an enigmatic world, with astronomers puzzled by a surprising drop in its ...

While Mercury is the innermost planet in the Solar System, on average it spends more time closer to Earth than Venus does.

Welcome to the enchanting realm of Neptune. In its orbit, artists express their most profound ideas, musicians strum their guitars, and spiritualists connect with the ethers, where the boundaries ...